Abstract: A locking device for an electrical receptacle to prevent the withdrawal of an inserted male plug includes a magnet in slidable engagement with the receptacle body. An actuator arm moves the magnet between retracted and extended positions. Locking means in the receptacle body for engaging a hole in the blade of the plug is moved by the position of the magnet. When the actuator arm is in the extended position the magnet is positioned proximate the hole of the blade whereby the locking means is engaged with the blade by the force of attraction of the magnet. In one embodiment the actuator arm includes two magnets of opposite polarity and the locking means includes a third magnet. When the actuator arm is moved between extended and retracted positions, the magnets align to either retract or repel the locking means.

Abstract: A one-way air valve that is mounted removably at one end of a baby bottle housing having two threaded open ends, with the opposite end receiving a conventional nipple, the one-way air valve includes a central diverging passage defined by opposed converging side walls which has a tiny slit elongated along the apex portion of the converging side walls and an annular base sized for attachment to the open end of said baby bottle, the valve being concavely mounted into the bottle to avoid breakage and to prevent leakage of the contents, while preventing colic in the child.

Abstract: The baby bottle according to the invention has an opening in the base of the bottle. A spring loaded valve is positioned in the opening and cooperates with an O-ring seal on the base. The valve includes a body having a pair of innerconnected, T-shaped channels forming the air inlet. The valve is further recessed in the bottom of the bottle to avoid inadvertent opening or breaking of the valve if the bottle is dropped.